• The Journal of the Korea Contents Association
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• v.8 no.12
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• pp.45-52
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• 2008

The Object Directory Service(ODS) of the mobile RFID is the core technology of the object information service for the object information retrieval among objects with RFID tags. The ODS service returns an URL information of a specific object application service after recognizing the mRFID tag in real time. The general ODS service is suitable for the global mRFID environment, but it is not good in the local networks and private networks that information security is needed. This paper proposes a new ODS service algorithm for the improvement of the general ODS service algorithm.

• Proceedings of the Korea Information Processing Society Conference
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• 2000.04a
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• pp.94-99
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• 2000

컴퓨터의 보급과 함께 인터넷의 대중화로 많은 정보가 인터넷을 통해 제공되면서 많은 사람들이 정보통신 기반 서비스를 이용하게 되었다. 하지만 이런 서비스에 익숙하지 않은 사용자가 자신이 원하는 정보를 찾는 것은 그리 쉬운 일이 아니다. 그래서 ISP나 PC통신 업체들은 사용자들이 겪는 어려움을 해결해 주기 위한 서비스를 제공하고 있다. 그러나 사용자들의 엄청난 증가로 인해 이런 서비스를 유지하는데 많은 인력과 시간이 필요하게 되면서 질의 응답 자동화에 대한 필요성이 대두되었다. 본 논문에서는 ISP 업체 중 하나인 한메일넷의 자동 응답 시스템을 위한 FAQ 브라우징 시스템을 개발하였다. 기존의 많은 검색 서비스가 키워드들을 단순히 나열하고 이 키워드의 링크를 따라가면서 검색을 하게 하였으나 이 방식은 검색 대상에 대한 키워드 정보만을 제공하기 때문에, 문제에 대한 배경 지식이 적거나 검색 서비스 사용에 익숙치 않은 사용자가 이용하기에는 쉽지 않다. 본 시스템에서는 사용자에게 이차원상에 표현된 문서 지도를 제공해서 사용자가 쉽게 전체 검색 자료의 분포를 파악하고 검색하도록 하였다. 또한 단계별 검색이 가능하도록 해서 사용자가 효율적으로 검색할 수 있다.

• The Journal of the Korea Contents Association
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• v.5 no.3
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• pp.159-166
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• 2005

The application that the user's contexts are continuously changed over time requires an efficient information retrieval. This paper proposes a new context-differentiated information retrieval method for an efficient ubiquitous service. This enables the rapid retrieval, because of no access to the most detail information at a time. This paper describes the retrieval method, the algorithms and the experimental results.

• Journal of Internet Computing and Services
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• v.13 no.5
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• pp.33-43
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• 2012

Semantic web is utilized to construct advanced information service by using semantic relationships between entities. Text mining can be applied to generate semantic relationships from unstructured data resources. In this study, ontology schema guideline, ontology instance generation, disambiguation of same name by text mining and advanced historical people finding service by reasoning have been proposed. Various relationships between historical event, organization, people, which are created by domain experts, are linked to literatures of National Institute of Korean History (NIKH). It improves the effectiveness of user access and proposes advanced people finding service based on relationships. In order to distinguish between people with the same name, we compares the structure and edge, nodes of personal social network. To provide additional information, external resources including thesaurus and web are linked to all of internal related resources as well.

• Journal of Korea Spatial Information System Society
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• v.11 no.1
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• pp.25-34
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• 2009

As the trend of the Web is changing toward 'Web 2.0', OpenAPIs, Web 2.0's core technology, are used in many web sites. In the past, services in websites are used in its own, but recently it is possible to use services in other websites by using OpenAPI. In u-GIS many vendors also can provide combined service by using OpenAPI. There are already lots of OpenAPIs and the numer of OpenAPI increases very fast. So it is difficult to find a service that we want to use, and also difficult to find services for mashup. In this paper, we developed retrieval methods for OpenAPIs and mashup capable services based on similarity. First we define the integrated service information model to cover various protocols of OpenAPI, then developed a retrieval methods based on it. By implementing system according these methods by using relational database and JSP, we prove that the system can provide an ranked result sets based on similarity, OpenAPI's integration retrieval results and mashup capable service retrieval results.

• Journal of Convergence for Information Technology
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• v.10 no.12
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• pp.9-14
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• 2020

Currently, NTIS (National Technology Information Service) is building an interactive search service based on artificial intelligence technology. In order to understand users' search intentions and provide R&D information, an interactive search service is built based on deep learning models and morpheme analyzers. The deep learning model learns based on the log data loaded when using NTIS and interactive search services and understands the user's search intention. And it provides task information through step-by-step search. Understanding the search intent makes exception handling easier, and step-by-step search makes it easier and faster to obtain the desired information than integrated search. For future research, it is necessary to expand the range of information provided to users.

• Journal of KIISE:Computing Practices and Letters
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• v.5 no.1
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• pp.99-108
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• 1999

정보검색 프로토콜 Z39.50은 시스템마다 다른 환경의 차이에서 생긴 정보검색상의 문제점을 해결하기 위해 제시되었다. 본 논문에서는 Z39.50 프로토콜 버전 3의 기능을 지원하는 Z39.50서버를 설계하고 구현한다. 또한 상용검색엔진인 Verity 와 연동하여 하나의 완전한 정보검색 시스템인 Zverity를 구축한다. 구현한 시스템은 버전 2의 기본적인 서비스 외에 검색어를 조회하는 스캔서비스, 대용량의 데이터를 전송하기 위한 분할 서비스, 서버의 구현정보를 제공하는 설명 기능을 지원한다.

• Journal of the Korea Society of Computer and Information
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• v.15 no.12
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• pp.101-108
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• 2010

In this paper, how fast and accurate the companies provides exponentially increasing information to the users is the most important in the corporate competitiveness. The enhancement of the retrieval relevance became the important element in enhancing company competitiveness and it is required to provide the services that are beyond simple retrieval service for good quality search service. This paper proposes the effective scheme that enhances retrieval relevance by utilizing registered tag information. By proposed scheme, we can overcome the limitations of retrieval relevance that usual search engines provide. And we compare the proposed scheme with existing web retrieval service on retrieval relevance evaluation and related search keyword.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10a
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• pp.25-27
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• 2003

현재 웹이 가지고 있는 문제점들을 해결하기 위해서 연구하고 있는 차세대 웹을 시멘틱 웹이라고 한다. 시멘틱 웹에서 다루고 있는 기술들은 다양하지만 요즈음 가장 부각되고 있는 기술이 DAML-S이다. DAML-S는 DAML+OIL기술을 기반으로 확장된 레이어를 제공하여 웹 서비스의 모호성(unambiguous)을 제거하고, 상호 운용성을 증가시키는 역할을 하고 있다. 본 논문에서는 DAML-S로 정의된 웹 서비스를 FOL 추론방법을 이용해서 검색하는 시스템을 제안한다. 이를 위해서 DAML-S를 PSO TRIPLE 형태로 변환하는 전처리 방법과 FOL 질의 방법을 제안한다. 본 시스템을 이용하면 기존의 키워드 기반의 검색 방법에서는 불가능하였던 질의 작성이 가능해 지며, 추론을 이용한 정확한 서비스 검색이 가능해 진다.

• The Journal of the Korea Contents Association
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• v.20 no.4
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• pp.202-211
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• 2020

This study examined the effects of online search service users' experiences on search satisfaction by the types of main search results. As a result of the survey, the negative experience of using the search result in the specific service area among the integrated search results is the most irrelevant regardless of the type of search result with the lowest usage rate. In particular, users are often exposed to advertising information and valuable or low useful information, and information inaccuracy, bias, and personal information leakage experience are relatively higher than other search results. Satisfaction by type of search result of online search service showed only difference in interest of search result, and no other satisfaction factor was found by type of search result. Looking at the experience factors that affect the satisfaction of each type of search results, in the case of general integrated search results except search websites such as search ads and search ads, the more accurate information is provided, the more satisfied the search results are. In the case of, the provision of high value and useful information has a positive effect on satisfaction. After all, it is implied that online search service providers should consider the highest priority for improving the service, improving the accuracy of information and the value and usefulness of information.